GR5 Titanium Bolts M8*20mm Hex Flange Drilled Head Screws
- Thread / PitchM8 × 1.25mm
- Length20 mm
- Safety DrillPre-drilled wire hole
- FinishCNC Natural / Polished
Each component is cold-forged and precision CNC-turned from certified Grade 5 Ti-6Al-4V alloy stock. Thread profiles are rolled rather than cut to ensure continuous grain-flow and prevent high-fatigue stress shearing under alpine riding conditions.
Situated in the upper Rhine Valley against the high-elevation slopes of the Rätikon mountain range, Triesen, Liechtenstein represents one of the most demanding operational landscapes in Central Europe for performance two-wheel vehicles. Motorcyclists navigating local switchbacks such as the Lavena and Malbun pass ascents demand intense mechanical resilience from critical chassis hardware. Rapid elevation changes bring intense thermal gradients, oscillating between extreme engine heat and cold mountain air, inducing repetitive expansion cycles that cause mild steel or standard A2 stainless bolts to relax torque retention or suffer micro-fretting.
Furthermore, municipal winter highway maintenance across the Oberland region utilizes aggressive de-icing salts (magnesium chloride and sodium chloride brines). When motorcycles and supermotos are ridden through wet, salt-laden roads, electrolytic road moisture settles into thread engagements. Navzo's Grade 5 (Ti-6Al-4V) titanium fasteners generate a spontaneous, self-healing titanium dioxide ($TiO_2$) passive film that delivers absolute immunity to pitting and crevice corrosion, ensuring zero seized hardware or structural embrittlement throughout decades of Alpine service.
By reducing unsprung and rotating mass at the brake rotors, triple clamps, and axle pinch points, racing mechanics and custom builders across the Rhine valley achieve lower gyroscopic inertia, delivering razor-sharp turn-in precision through hairpin corners.
From custom vintage restoration workshops in Oberland to elite track builders testing in nearby circuits, Navzo delivers specific mechanical advantages across five major motorcycle zones.
The steering stem and fork clamp junctions require high clamping force without introducing excess unsprung mass. Our DIN 912 and flange M8 Grade 5 bolts maintain high clamp preload under rapid braking deceleration into downhill switchbacks, resisting shear fatigue and vibration loosening.
Alpine descents cause intense brake rotor heat spikes exceeding 450°C. Stainless fasteners conduct heat directly into hubs and can stretch over thermal cycles. Navzo Torx T25 and drilled flange caliper bolts preserve exact torque seated clamping, reducing rotor runout and brake chatter.
Constant thermal shocks from rapid mountain weather shifts induce extreme thermal expansion at exhaust manifold studs. Navzo M10 burnt blue titanium studs prevent stud snapping, thread galling, and rust crystallization commonly found in OEM carbon steel studs.
Rear swingarm linkages absorb severe torsional shocks from rough Alpine pavement and gravel mountain passes. Our Grade 5 M10 and M12 high-strength shoulder bolts deliver 895 MPa yield capability, preventing ovalization of mounting brackets.
For custom café racers and e-motorcycles engineered around Vaduz and Triesen, our low-profile umbrella head screws and countersunk Allen fasteners ensure flush, aerodynamic, vibration-resistant installation on carbon fiber and billet fairings.
Liechtenstein's growing electric mobility cluster demands non-magnetic, corrosion-resistant lightweight enclosures. Grade 5 titanium fasteners offer zero electromagnetic interference, guarding sensitive high-voltage motor controllers and battery trays against corrosion.
How regional specialization in high-precision mechanics, electric mobility, and track-day tuning is shaping fastener specifications.
Precision mechanical workshops in Triesen increasingly reject general-purpose stainless steel fasteners for load-bearing motorcycle chassis nodes due to work-hardening brittleness and inferior yield strength (450 MPa vs. Navzo’s 828 MPa yield).
Aesthetic customization among Alpine motorcycle enthusiasts has evolved beyond raw metal. Deep vacuum Physical Vapor Deposition (PVD) and burnt-blue gradient oxidation provide extreme scratch hardness for parts repeatedly exposed to gravel spray.
Liechtenstein's strict engineering compliance aligned with Swiss and EU vehicle registration standards (MFK inspections) mandates documented mechanical properties. Navzo delivers complete EN 10204 3.1 chemical and tensile inspection reports with each batch.
Evaluating structural capacity across primary fastener alloys utilized in European motorsport applications.
| Alloy Specification | Density (g/cm³) | Tensile Strength (MPa) | Yield Strength (MPa) | De-Icing Salt Corrosion | Torque Retention in High Thermal Cycling |
|---|---|---|---|---|---|
| Navzo GR5 Titanium (Ti-6Al-4V) | 4.43 | 895 – 1050 | 828 | Immune (Spontaneous TiO₂ Layer) | Exceptional (Low Thermal Expansion) |
| Austenitic Stainless Steel (A2-70) | 7.90 | 700 | 450 | Moderate (Subject to Crevice Pitting) | Moderate (Prone to Galling / Loosening) |
| High-Tensile Steel Grade 10.9 | 7.85 | 1040 | 940 | Poor (Requires Plating; Rusts Fast) | Good (High Clamping Preload) |
| Commercial Pure Titanium (Grade 2) | 4.51 | 345 | 275 | Immune | Low (Not for Dynamic Mechanical Loads) |
Founded in 2011 on Yucai Road, High-tech Development Zone, Baoji, Shaanxi, China, Navzo Precision Titanium Products Co., Ltd. sits at the absolute core of the global titanium raw material cluster. Baoji produces the vast majority of premium titanium sponge, ingots, and aerospace bar stock in China.
This geographic integration eliminates intermediate broker markups, grants priority access to certified Ti-6Al-4V stock, and empowers our in-house engineering team—collaborating directly with metallurgical universities and invited international experts—to supervise heading, precision CNC machining, and thread rolling under one audited roof.
From digital CAD files to final batch surface inspection, our manufacturing controls guarantee micron-level repeatable accuracy.
Submission of 2D/3D technical drawings (STEP, DWG, PDF). Our engineering division confirms thread class tolerances, head geometries, stress-relief radius under the bolt head, and alloy viability within 1 business hour.
Bar stock is cut from certified Ti-6Al-4V rounds. Multi-axis CNC centers machine intricate wrench drives and safety wire holes, followed by continuous-die thread rolling to preserve grain line continuity.
Depending on application requirements, parts receive chemical brightening, precision micro-bead blasting, multi-color electrochemical anodization, thermal burnt-blue coloration, or hard vacuum PVD coating.
Every single batch undergoes dimensional checks using calibrated optical projectors, thread ring go/no-go gauges, and ultrasonic thickness tests to ensure flawless engagement into OEM castings.
Fasteners are sealed in anti-static, moisture-barrier packaging labeled with part numbers and lot identifiers, accompanied by physical EN 10204 3.1 Mill Test Reports and dimensional inspection certs.
Fast direct dispatch via DHL/FedEx Express directly into the Principality of Liechtenstein with full customs documentation for Swiss-Liechtenstein customs union clearance.
Clear, engineering-focused answers addressing regional regulations, installation standards, and technical specifications.
Commercially pure titanium (Grade 2) possesses exceptional chemical corrosion resistance but only delivers a minimum tensile strength of roughly 345 MPa, making it unsafe for dynamic, load-bearing motorcycle nodes. Grade 5 (Ti-6Al-4V) is an alpha-beta aerospace alloy heat-treated to achieve a minimum tensile strength of 895 MPa and yield strength of 828 MPa. For critical locations such as brake caliper mountings, triple clamp pinch bolts, and swingarm pivots, GR5 provides the required high clamp load and shear strength equivalent to Class 10.9 steel, but with 44% lower weight.
Road maintenance across the Rhine Valley and the mountain passes above Triesen relies on liquid brine de-icers that rapidly cause galvanic pitting and stress corrosion cracking in zinc-plated carbon steel or low-grade stainless. Titanium forms an instantaneous, resilient surface oxide ($TiO_2$) that does not react with chloride ions across operating temperatures between -40°C and +400°C. This guarantees that hardware will never rust, fuse, or strip out threads when serviced after winter riding seasons.
Titanium threads are naturally prone to micro-galling when mated dry against aluminum castings or another titanium fastener. We recommend applying a high-quality copper-based or nickel-based anti-seize compound (or dedicated titanium thread lubricant) to all threads and under-head bearing surfaces before assembly. When using lubricant, reduce nominal dry OEM torque values by approximately 10% to 15% to achieve identical clamping preload without overstressing female aluminum threads.
Yes. As a direct Baoji factory, our OEM/ODM custom division regularly manufactures bespoke fasteners for custom chassis builders, vintage motorcycle restoration shops, and race teams across Europe. You can supply 2D drawings (PDF, DWG), 3D parametric models (STEP, IGES), or physically mail sample parts. We reproduce non-standard head shapes, specialized shoulder lengths, drilled lock-wire holes, custom thread pitches, and laser-etched branding logos.
Electrochemical Anodizing: An electrolytic process that controls the thickness of the natural oxide film to refract light into vibrant colors (gold, purple, cyan, green). Excellent for fairing, engine covers, and cockpit hardware.
Burnt Blue: A thermal oxidation treatment producing a signature color gradient reminiscent of titanium racing exhaust manifolds.
PVD (Physical Vapor Deposition): Applies an ultra-hard microscopic ceramic layer (such as Titanium Nitride or Diamond-Like Carbon) in a high-vacuum chamber. This provides the highest surface hardness, scratch resistance, and friction reduction for high-wear wheel axles and brake caliper bolts.
For standard catalogue fasteners, our Minimum Order Quantity (MOQ) typically ranges from 100 to 200 pieces per size, with sample evaluation batches readily available for prototype projects. Custom CNC parts are quoted per drawing specifications. Production lead times for custom runs average 15 to 25 business days. Shipments are handled via express air couriers (DHL Express / FedEx) directly into Liechtenstein under standard Swiss customs clearance protocols, with complete Commercial Invoices, Packing Lists, and MTR documentation provided.
Delivering verifiable precision to international motorcycle builders through rigorous in-house quality assurance.
Whether you need a dedicated production batch of custom titanium brake rotor bolts, lightweight subframe studs, or a complete OEM fastener program for high-performance builds, Navzo Precision Titanium delivers aerospace tolerances backed by complete metallurgical traceability.
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